MANAGEMENT PUBLIC COMPANY LIMITED MANAGEMENT DISCUSSION AND ANALYSIS FOR 2017 3 Raw Water Volume (Million Cu.M) Q4/2016 Q4/2017 YoY % 2016 2017 YoY % Total distribution volume 65.15 59.46 (5.69) (8.73%) 282.02

SINO-THAI ENGINEERING AND CONSTRUCTION PUBLIC COMPANY LIMITED SIRAKORN PUBLIC COMPANY LIMITED SIS DISTRIBUTION (THAILAND) PUBLIC COMPANY LIMITED SISB PUBLIC COMPANY LIMITED SITRON POWER PUBLIC COMPANY

Amending Securities Holder Records Attachment 5 Form of Securities Transfer Form E Form TSD-403 Securities Transfer to/from Issuer Account with Participant Attachment 6 Confirmation Letter on the Source of

: - Sales increased by 534.91 million baht or 41.47% from 1,289.83 million baht in Q1/2019 to 1,824.74 million baht in Q1/2020 because of the transfer in Metris Rama9 - Ramkumhang which was completed

books production and distribution business and business operation under Nation Global Edutainment Co., LTD. Capital Increase Report Form (F 53-4) (Enclosure 2) Clause 6. Benefits to be received by the

CONSTRUCTION PUBLIC COMPANY LIMITED SIRAKORN PUBLIC COMPANY LIMITED SIS DISTRIBUTION (THAILAND) PUBLIC COMPANY LIMITED SISB PUBLIC COMPANY LIMITED SITRON POWER PUBLIC COMPANY LIMITED SKY ICT PUBLIC COMPANY

611.1 590.7 2,888.2% Gross Profit Margin 15.5% 42.2% GPM before adjustment with PPA 15.5% 57.3% 1. Rental and Service Income  Rental and service income from warehouses, distribution centers and factories

. • Revenue from industrial land sale increased by 48.2% and 32.3% during 3 months and 6 months ended the second quarter of 2019, mainly from higher land transfer which came from higher backlog. Moreover, the

HIGHLIGHTS  Total revenue increased by 81.8%, mainly from significantly increase in income from sale of real estate due to increase in land transfer this quarter, compared to the same period of pervious year

exclusive) payable in the form of: [ ] [ ] · Bank draft / Corporate cheque / Cash · Receipt of money transfer [ ] 8. Other supporting documents ( please specify